Diseño e implementación de una aplicación informática de administración y gestión de los procesos y documentación de prevención de riesgos laborales (PRL), integrada con gestor documental

Ante una organización cada vez más sensibilizada con los riesgos laborales y un alto contenido legislativo, la gestión eficaz de riesgos laborales es la manera lógica y natural de actuación, para conseguir una mejora continua de las condiciones de trabajo y la excelencia empresarial. Este proyecto consiste en el análisis, diseño, implementación e implantación de un sistema eficaz y a bajo coste, que permite a una empresa una adecuada gestión de los Riesgos Laborales que garantice el alcance de la excelencia empresarial. El objetivo fundamental de este proyecto consiste en desarrollar un sistema que permita a una mediana empresa la correcta gestión de sus Riesgos Laborales y la mejora de resultados de las auditorías según la norma OHSAS 18001

Analysis and optimization of an all-fiber device based on photonic crystal fiber with integrated electrodes

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)We present both numerical and experimental studies of an all-fiber device based on the integration of metallic electrodes into photonic crystal fibers (PCF). The device operation consists on applying electrical current to the electrodes which, by Joule effect, expand and squeeze the PCF microstructure in a preferential direction, altering both phase and group birefringence. We investigate the effect of integrating electrodes into the fiber and the dependence of the device sensitivity on the electrode configuration and composition. (C) 2010 Optical Society of America18328422848Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES

Analytical model for predicting the buckling load of continuous welded rail tracks

The use of continuous welded rail (CWR) track has solved many of the problems associated with tread surface discontinuities that occur in jointed tracks. However, due to the longitudinal expansion of the rails in CWR tracks being highly constrained, the generated compressive stresses in the rails can cause track buckling in the horizontal plane. Track buckling is a complex phenomenon, in which many factors are involved and around which there is much uncertainty. The objective of this paper is to present an analytical model that can be used to calculate the buckling load of a CWR track. This model accounts for the contributions of base, crib and shoulder ballast and includes the effect of vertical loading on each of these components. Moreover, a parametric study based on this model is developed, in order to understand how and the extent to which the considered factors affect track stability. The results of the study indicate that the characteristics of the existing misalignments in the track are the critical parameters involved in the phenomenon. In addition, maintenance operations that affect the ballast, such as tamping or surfacing, and the dimensions and material of the track sleepers are also important factors.Navarro Martinez, JI.; Villalba Sanchis, I.; Martínez Fernández, P.; Insa Franco, R. (2015). Analytical model for predicting the buckling load of continuous welded rail tracks. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit. 229(5):542-552. doi:10.1177/0954409713518039S5425522295Kerr, A. D. (1978). Analysis of thermal track buckling in the lateral plane. Acta Mechanica, 30(1-2), 17-50. doi:10.1007/bf01177436Grissom, G. T., & Kerr, A. D. (2006). Analysis of lateral track buckling using new frame-type equations. International Journal of Mechanical Sciences, 48(1), 21-32. doi:10.1016/j.ijmecsci.2005.09.006Le Pen, L. M., & Powrie, W. (2011). Contribution of Base, Crib, and Shoulder Ballast to the Lateral Sliding Resistance of Railway Track: A Geotechnical Perspective. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 225(2), 113-128. doi:10.1177/095440971039709

Minimally invasive treatments for lower urinary tract symptoms in men with benign prostatic hyperplasia : a network metaanalysis (Protocol)

A C K N O W L E D G E M E N T S We are very grateful to Cochrane Urology, especially the Managing Editor Robert Lane, as well as Cochrane Urology Korea for supporting this review. Furthermore, we are grateful to Gretchen Kuntz for revising and providing feedback on the search strategies. We also thank Marco Blanker, Sevann Helo, and Murad Mohammad for their peer-review input of the protocol. S O U R C E S O F S U P P O R T Internal sources • Instituto Universitario Hospital Italiano, Argentina Salary support for Juan Franco, Luis Garegnani, Camila Micalea Escobar Liquitay • Department of Urology, Yonsei University Wonju College of Medicine, Korea, South Salary support for Jae Hung Jung • Minneapolis VA Health Care System, USA Salary support for Philipp Dahm • Department of Urology, University of Minnesota, USA Support in kind for Philipp DahmPeer reviewedPublisher PD

Lifshitz spacetimes from AdS null and cosmological solutions

We describe solutions of 10-dimensional supergravity comprising null deformations of $AdS_5\times S^5$ with a scalar field, which have $z=2$ Lifshitz symmetries. The bulk Lifshitz geometry in 3+1-dimensions arises by dimensional reduction of these solutions. The dual field theory in this case is a deformation of the N=4 super Yang-Mills theory. We discuss the holographic 2-point function of operators dual to bulk scalars. We further describe time-dependent (cosmological) solutions which have anisotropic Lifshitz scaling symmetries. We also discuss deformations of $AdS\times X$ in 11-dimensional supergravity, which are somewhat similar to the solutions above. In some cases here, we expect the field theory duals to be deformations of the Chern-Simons theories on M2-branes stacked at singularities.Comment: Latex, 29pgs, v3. references, minor clarifications (subsection on Lifshitz geometry seen by scalar probes) added, to appear in JHE

Minimally invasive treatments for benign prostatic hyperplasia : a Cochrane network meta-analysis

Acknowledgements This project was funded by the National Institute for Health Research (NIHR) [Cochrane Incentive Award (NIHR130819)]. The views expressed are those of the author(s) and not necessarily those of the NIHR or the Department of Health and Social Care. We are very grateful to Cochrane Urology, especially Managing Editor Robert Lane, as well as Cochrane Urology Korea, for supporting this review. We are also grateful for the constructive feedback from the Cancer Network and the Methods Support Unit. We also thank Gretchen Kuntz for revising and providing feedback on the search strategies; Marco Blanker, Sevann Helo, and Murad Mohammad for their peer review input of the protocol; Dominik Abt, Bilal Chughtai, and Ahmed Higazy for providing details on the outcomes of their trials, for them to be incorporated accurately in our review; Marc Sapoval, Deepak Agarwal, Cameron Alexander, Harris Foster, and Mitchell Humphreys for their peer review input of the review. Juan Víctor Ariel Franco is a PhD candidate in the Programme of Methodology of Biomedical Research and Public Health, Universitat Autònoma de Barcelona (Spain)Peer reviewedPostprin

A slice of AdS_5 as the large N limit of Seiberg duality

A slice of AdS_5 is used to provide a 5D gravitational description of 4D strongly-coupled Seiberg dual gauge theories. An (electric) SU(N) gauge theory in the conformal window at large N is described by the 5D bulk, while its weakly coupled (magnetic) dual is confined to the IR brane. This framework can be used to construct an N = 1 MSSM on the IR brane, reminiscent of the original Randall-Sundrum model. In addition, we use our framework to study strongly-coupled scenarios of supersymmetry breaking mediated by gauge forces. This leads to a unified scenario that connects the extra-ordinary gauge mediation limit to the gaugino mediation limit in warped space.Comment: 47 Pages, axodraw4j.st

SL(2,R) Chern-Simons, Liouville, and Gauge Theory on Duality Walls

We propose an equivalence of the partition functions of two different 3d gauge theories. On one side of the correspondence we consider the partition function of 3d SL(2,R) Chern-Simons theory on a 3-manifold, obtained as a punctured Riemann surface times an interval. On the other side we have a partition function of a 3d N=2 superconformal field theory on S^3, which is realized as a duality domain wall in a 4d gauge theory on S^4. We sketch the proof of this conjecture using connections with quantum Liouville theory and quantum Teichmuller theory, and study in detail the example of the once-punctured torus. Motivated by these results we advocate a direct Chern-Simons interpretation of the ingredients of (a generalization of) the Alday-Gaiotto-Tachikawa relation. We also comment on M5-brane realizations as well as on possible generalizations of our proposals.Comment: 53+1 pages, 14 figures; v2: typos corrected, references adde